RP SMA Male to FME Male Connector/Adapter (Reverse Polarity SMA) for WiFi Routers Use as an adapter to connect antennas, cables, amplifiers, and all sorts of electronic equipment Changes a RP (reverse polarity) SMA male connection into a FME male connection Compatible with all RP SMA female and FME female connectors Brass construction with nickel or gold plating Use it with Wilson, Motorola, SureCall and other brand name amplifiers and for all WiFi routers with RP SMA connectors